Q-factor improvement of degenerate four-wave-mixing regenerators for ASE degraded signals

• 作 者: 卢行 武保剑 耿勇 周星宇 孙凡
• 机 构: Key Lab of Optical Fiber Sensing and Communications, Ministry of Education, University of Electronic
• 出 处: Optoelectronics Letters
• 发表日期: 2017年06期
• 关键词: degraded degenerate receiver mixing clock return cascaded suppress capable spont

All-optical regenerators can be used to suppress amplified spontaneous emission(ASE) noise introduced by cascaded erbium doped fiber amplifiers(EDFAs) in optical fiber communication systems and lead to the improvement of optical receiver sensitivity. By introducing the Q-factor transfer function(QTF), we evaluate the Q-factor performance of degenerate four-wave mixing(DFWM) regenerators with clock pump and reveal the differences between the optimal input powers determined from the static and dynamic power tranfer function(PTF) and the QTF curves. Our simulation shows that the clock-pump regnerator is capable of improving the Q-facor and receiver sensitivity for 40 Gbit/s ASE-degraded return-to-zero on-off keying(RZ-OOK) signal by 2.58 dB and 4.2 d B, respectively.

All-optical regenerators can be used to suppress amplified spontaneous emission (ASE) noise introduced by cascaded erbium doped fiber amplifiers (EDFAs) in optical fiber communication systems and lead to the improvement of optical receiver sensitivity. QTF), we evaluate the Q-factor performance of degenerate four-wave mixing (DFWM) regenerators with clock pump and reveal the differences between the optimal input powers determined from the static and dynamic power tranfer function (PTF) and the QTF curves. simulation shows that the clock-pump regnerator is capable of improving the Q-facor and receiver sensitivity for 40 Gbit / s ASE-degraded return-to-zero on-off keying (RZ-OOK) signal by 2.58 dB and 4.2 d B, respectively.